Surface Mount

THE WORLD'S TOUGHEST MARKER POSTS – QUICK INSTALL FOR CONCRETE

Steel-Flex Surface Mount is engineered for maximum durability, combining the strength and resilience of Steel-Flex® post with a flexible polyurethane base that can be surface mounted onto any concrete surface. 

The flexible marker posts deliver the exceptional resilience of Steel-Flex, high visibility, and long term cost benefits, for concrete surfaces. Roll-formed from high-performance spring steel, protected by an advanced ArmorGalv® thermal diffusion galvanised coating, and finished with a high-gloss, UV-resistant powder coat. Available in a wide range of colours and markers including flood depth markers, hazard markers and keep left markers.

A black and white surface mounted road sign

FEATURES and Benefits

Unmatched Durability:

Roll-formed from high-performance spring steel, Steel-Flex surface mount marker posts are protected by an advanced ArmorGalv® thermal diffusion galvanised coating, then finished with a UV-resistant, high-gloss powder coat. This triple-layer protection delivers exceptional corrosion resistance—even after repeated impacts or harsh weather exposure.

Self-Righting Flexibility:

The patented flexible steel design means Steel-Flex surface mount posts bend and return upright after impacts or wheel-overs, dramatically reducing replacement and maintenance costs.

Fast, Safe Installation:

The surface mount base allows for rapid deployment on concrete surfaces with anti-vandal fasteners for stability and security

Long-Term Performance:

Steel-Flex posts retain at least 75% of its colour and physical properties for 10+ years, even in extreme weather. Fire-resistant up to 140°C, non-flammable, and safe to handle with no sharp edges.

Versatile & Customisable:

Available in a wide range of colours and compatible with all standard delineators and marker post stickers, ensuring compliance and visibility for any project.

Australian Standards Compliance:

Fully compliant with British & European Standard EN 12899–3:2008 and Australian Standard AS 1742.2 and AS/NZ 1906.1.

The tip of a steel flex guide post

STEEL-FLEX ® PATENTED DESIGN

High Performance Premium Grade Spring Steel

Manufactured in Australia using a special grade roll formed a high-performance spring steel for maximum strength and flexibility.

Elastically Bendable Through 180º

Patented unique 11 rib design can bend through 90º in both directions and return upright, even after multiple impacts.

ArmorGalv ® Thermal Diffusion Galvanised Coating

The sustainable process offers superior corrosion protection, wear resistance and anti-galling properties.

UV Resistant High Gloss Powder Coat

Available in a wide range of colours, the fire and UV resistant, powder coated finish is formulated to withstand prolonged sun exposure, and repeated impacts.

Applications for Steel-Flex® Surface Mount Marker Post

Steel-Flex® Surface Mount Marker Posts purpose-built for:

A surface mounted keep left sign

Concrete Roadways & Motorways:

Engineered for secure installation on concrete surfaces, Steel-Flex Surface Mount Marker posts are ideal for major roadways and motorways. Their robust, flexible design provides outstanding durability, even in heavy traffic areas.

Bridges, Tunnels. Overpasses & Underpasses

Purpose-built for permanent installation on concrete structures where traditional markers are difficult to anchor, Steel-Flex Surface Mount Markerposts are proven to deliver a stable, long-lasting solution for hazard delineation on bridges, tunnels, overpasses, and underpasses.

Concrete Road Edges & Shoulders:

Surface Mount Marker posts are perfect for edges of concrete roads and shoulders, especially to notify road users of hazards.

Urban Infrastructure & Car Parks:

Permanent infrastructure situations requiring reliability and security, in concrete installations, Steel-Flex Surface Mount will securely lock in place with anti-vandal fasteners. making them Ideal for use in urban environments, multi-level car parks, and other hard-surface locations

STEEL-FLEX® SURFACE MOUNT MARKER POSTS & ROAD EDGE POST PRODUCTS

This is an example of Surface Mount Product SKU

Surface Mount

Surface Mount

Surface Mount

Surface Mount

Surface Mount

Surface Mount

SURFACE MOUNT MARKER POST TECHNICAL SPECIFICATIONS

Delnorth Steel-Flex ® is a patented flexible steel delineator post. Steel-Flex may be surface mounted into concrete with secure anti vandal fasteners. Steel-Flex ® is capable of withstanding repeated impacts and wheel overs by vehicles with minimal damage to the post or vehicle. Steel-Flex ® marker posts comply with:

British & European Standard E N 12899 – 3:2008 & Australian Standard AS 1742.2 and AS/NZ 1906.1

Steel-Flex can retain a minimum of 75% of colour, appearance and physical properties for 10 years even when exposed to extreme weather conditions. They are fire resistant and the powder coating can withstand temperatures of up to 140°C.

Steel-Flex flexible steel marker posts stand vertical when installed. Testing has shown that the post will not deflect more than 35mm when subjected to wind speeds of 45m / sec. (162 kph) on the front face (convex surface) of the post.

The load required to bend each post length of 1000mm long to an angle of 90° should not be less than 30N. It only requires 5kg pressure to bend a Steel-Flex ® post.

Steel-Flex ® marker posts return to vertical automatically after repeated vehicle impacts. They have been tested to 10 impacts from a passenger type vehicle at 100 kph without compromising the integrity of the post. It has been tested to ten wheel over’s at 50kph from a fully laden 42 tonne truck without compromising the integrity of the post.

FEATURES

  • Ideal for concrete pavements
  • Durable signpost solution
  • Returns to vertical after repeated impacts
  • Will not dislodge on impact
  • High impact resistance
  • Returns to vertical after repeated impacts
  • High impact resistance
  • Will not fade or discolour
  • Thermal resistance -30’C to +80’C
  • Life expectancy of 15 + years
  • Fire resistant
  • Quick and easy to install
  • Low maintenance
  • High visibility
  • Significant cost savings
  • No sharp edges

DOWNLOADS

INSTALLATION EQUIPMENT FOR Surface Mount Marker Posts

Installation

Flexi-T Installation

FAQs

Why Choose Steel-Flex® Surface Mount Flexible Marker Posts?

  • Unmatched Durability: Steel-Flex® flexible steel Marker posts are designed for maximum impact resistance and longevity, even after repeated vehicle impacts and wheel-overs.
  • Quick & Secure Surface Mount Installation: Specially engineered for fast, secure mounting to concrete surfaces, perfect for bridges, tunnels, barriers, and road edges.
  • High Visibility & Customisation: Available in a wide range of colours and delineation options, including reflective panels for enhanced night-time and low-light visibility.
  • Corrosion & Fire Resistance: ArmorGalv® coating and premium powder finish deliver exceptional corrosion protection and fire resistance, ensuring a long service life in Australia’s toughest environments.
  • Compliance & Safety: Fully compliant with British & European Standard EN 12899-3:2008 and Australian Standard AS 1742.2 and AS/NZ 1906.1 for roadside delineator posts.
  • Low Maintenance: Will not fade, discolour, or develop sharp edges. Designed to save time and reduce costs for councils and contractors.